Dr. Khalid Hattar is a Principal Member of the Technical Staff in the Ion Beam Lab and Center for Integrated Nanotechnologies at Sandia National Laboratories in Albuquerque, New Mexico. He received a B.S. in Chemical Engineering with an emphasis in Materials Science from University of California, Santa Barbara in 2003, and a Ph.D. in Materials Science and Engineering from University of Illinois, Urbana-Champaign in 2009 under the guidance of Professor Ian M. Robertson. He specializes in determining the property-microstructure relationship for a variety of structural and functional materials through in situ electron microscopy techniques in various extreme environments, as well as tailoring local properties of materials through ion beam modification. This includes the development of the In-situ Ion Irradiation Transmission Electron Microscope that is designed to explore a range of juxtaposed conditions. He has given 74 invited presentations, published three book chapters, and over 100 research articles. Dr. Renu Sharma is a Project Leader in the Physical Measurement Laboratory at National Institute of Standards and Technology (NIST). She received a B.S. and B.Ed. in Physics and Chemistry from Panjab University, India, and M.S. and Ph.D. degrees in Solid State Chemistry from the University of Stockholm, Sweden. She joined NIST in 2009 as a Faculty Research Associate in the Department of Chemistry and Biochemistry and the Center for Solid State Science. She is a pioneer in the development of environmental scanning transmission electron microscopy (E(S)TEM), combining atomic-scale dynamic imaging with chemical analysis to probe gas-solid reactions. She has received a Bronze Medal of Service from Department of Commerce for developing new measurement techniques. She has given over 90 invited presentations, edited one book, published 5 book chapters and over 200 research articles. At the NIST, she established an advanced E(S)TEM measurement capabilities, that combines Raman spectroscopy, cathodoluminescence with electron diffraction, electron spectroscopy, high-resolution imaging and plasmonics, applied in nanoscience research.